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Waviness Affects Friction and Abrasive Wear

Li, Yulong 1; Garabedian, Nikolay ORCID iD icon 1; Schneider, Johannes ORCID iD icon 1; Greiner, Christian ORCID iD icon 1
1 Institut für Angewandte Materialien – Computational Materials Science (IAM-CMS), Karlsruher Institut für Technologie (KIT)


Abrasive wear can have a detrimental effect on machinery, especially in the mining and construction industries. To prolong machinery lifetime and cut down energy consumption, a thorough understanding of abrasive wear is essential: surface topography measurement and interpretation (including form, waviness, and roughness) are vitally important. However, the potentially crucial influence of surface topography intricacies on tribological behavior has been obscured since roughness and waviness are considered simple scalar quantities in most cases (e.g., roughness R$_{a}$ and waviness W$_{t}$). In this work, the complete waviness profile of the sliding track was used to shed light on the influence of surface topography on abrasive wear. Bearing steel (100Cr6, AISI 52100) pins and disks were tribologically tested in a flat-on-flat contact with Al$_{2}$O$_{3}$-based slurries as interfacial medium. Using slurries with two different particle sizes, 5 and 13 μm, we found that friction fluctuates only with small abrasive particles (5-µm slurry) and relatively low waviness disks. It was found that even small surface deviations (albeit minimized and controlled for) can significantly increase the friction coefficient—up to 91%. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000159061
Veröffentlicht am 21.06.2023
DOI: 10.1007/s11249-023-01736-1
Zitationen: 5
Web of Science
Zitationen: 3
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Computational Materials Science (IAM-CMS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2023
Sprache Englisch
Identifikator ISSN: 1023-8883, 1573-2711
KITopen-ID: 1000159061
HGF-Programm 43.34.02 (POF IV, LK 01) Hybrid and Functionalized Structures
Erschienen in Tribology Letters
Verlag Springer
Band 71
Heft 2
Seiten Art.-Nr.: 64
Vorab online veröffentlicht am 27.04.2023
Nachgewiesen in Scopus
Web of Science
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